Holding means for a manufally operated hand tool



April 2, 1957 A. c. LAZIER 2,787,302

HOLDING MEANS FOR A MANUALLY OPERATED HAND TOOL.

Filed Aug. 26, 1955 awe/V704 United States Patent HOLDING MEANS FOR A MAN UALLY OPERATED HAND TOOL Allan C. Lazier, Los Angeles, Calif., assignor to Northrop iircraft, Inc., Hawthorne, Califl, a corporation of Caliorma Application August 26, 1955, Serial No. 530,691

1 Claim. (Cl. 144-32) This invention has to do with a multiple purpose tool that may be used to extract fasteners and perform a number of additional functions.

Once a structure is fabricated it may, under certain circumstances, be necessary to disassemble the same for repairs or inspection. In order to accomplish the disassembling operation the fasteners in the nature of screws and bolts must be removed.

It is, therefore, the principle object of this invention to provide a multiple purpose tool that may be adapted to remove various type fasteners from fabricated structures.

Another object of this invention is to provide a multiple purpose tool that is simple in construction yet effective in operation, readily fabricated and maintained, and suitable for manufacturing by mass production techniques.

The invention in broad terms comprises a block that may be releasably attached to a fabricated structure and has for its purpose the maintaining, spaced from the structure, a bar. Through the bar extends a rotatable stem to which may be attached various conventional instruments that are adapted to fit over or in the head of fasteners in the nature of bolts and screws. The stem is maintained in proper relation to the fasteners in order that the instruments will not be dislodge when withdrawing or inserting the fasteners into the fabricated structure.

Figure l is a fragmentary, cross-sectional view illustrating and having embodied therein the present invention.

Figure 2 is a plan view of the elongated bar that constitutes an element of the present invention.

Figure 3 is an isometric view of the block that constitutes an element of the present invention.

Referring to the drawings for a more detailed description of the invention, 10 designates a frame or frame members to which normally there is attached, by screws, a panel 12.

All of the screws holding the panel 12 to the frame 10 have been removed with the exception of the one designated 14. The screw 14 remaining, due to one factor or another, has resisted the normal and usual efforts of removal and for that reason the tool of this invention is applied.

A spacer block 16, having a plurality of openings 18 therethrough of differing dimensions for accommodating bolts 20 of differing dimensions, is held against or is caused to rest on panel 12. An elongated bar 22 having an elongated slot 24 therein is laid on the block. The bolt 20 is inserted through the slot 24 and one of the openings 18 in the block 16. The bar 22 and block 16 are releasably secured to the frame 10 by virtue of the bolt 20 being threaded into one of the screw holes from which the screw was removed.

The spacer block 16 is illustrated as being fabricated of a clear material which in the present instance is a shockproof plastic. However, the material from which the block 16 is constructed is immaterial, for virtually any solid material will be adequate.

The bar 22 has an opening 25 therethrough that has for its purpose the accommodating of an externally threaded stem 26. The stem 26 has a head 28 thereon to which may be applied a tool for rotating the former.

Opposed to the head 28 and integral with the stem 26 is a polygonal shaped end 3% over which may be placed a standard fitting 32 such as a Phillips screw driver. The tip of the fitting 32 has a configuration that is complementary to and mates with the head or depressions on or in the screw 14.

Threaded onto the stem 26 between the bar 22 and the fitting 32 is a nut 36.

It may be determined by referring to Figure l of the drawings that the stem 26 is parallel to the bolt 20 and the bar 22 is parallel to the panel 12.

The operation of the device is as follows: The block 16 and bar 22 are attached to the frame 10 in the manner previously described. A fitting 32 is selected that will fit over or into the head of a fastener 14 and is placed on the end 30 of the stem 26. The stem is positioned in the opening 25 and the bar 22 is adjusted through the medium of the slot 24 until the fitting 32 is in direct linear alignment with the fastener 14 and then the tip 34 is made to mate with the fastener 14. When this is accomplished the nut 36 is threaded against the bar 22 in the manner illustrated in Figure l of the drawings to hold the stem 26 in the selected position. The nut 36, in the position referred to, retains the fitting 32 in engagement with the fastener 14 and resists removal. Once the stem 26 is properly positioned a wrench is applied to the head 28 and rotated in the direction necessary to remove the fastener. As stated the nut 36 prevents the fitting 32 from twisting from the mating position.

While in order to comply with the statute, the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise a preferred form of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claim.

What is claimed is:

A tool comprising a spacer block having a plurality of openings therethrough; an elongated bar having an elongated slot and an opening therethrough; a bolt that extends through any one of the openings in said block and through the slot in said bar to releasably attach said bar and block to a structure; a bolt that extends through the opening in said bar and has a tip thereon adjacent said structure that is adapted to receive a variety of tools; and a nut on said last mentioned bolt between said tip and bar for retaining said bolt in a selected position.

References Cited in the file of this patent UNITED STATES PATENTS 2,219,484 Lyon Oct. 29, 1940 2,565,505 Lamb Aug. 28, 1951 2,623,556 Henry Dec. 30, 1952 2,632,486 Fetsko Mar. 24, 1953 2,679,270 Krause May 25, 1954 2,721,589 Hammer Oct. 25, 1955 FOREIGN PATENTS 391,124 Great Britain Apr. 18, 1933 

